Dumping what I have on Alvin K. Berkun, the former Tree of Life Rabbi:
>Miraculously stayed home on Saturday to help his sick wife.
>Has a son who works a mile away from where the mail bomber lived.
>Advocated for a man convicted of spying for Israel
>Called himself a "friend" of disgraced pedo-protector Cardinal Wuerl.
>Apparently has direct connections to the Vatican
Spook central.
https://www.nytimes.com/2018/10/27/us/active-shooter-pittsburgh-synagogue-shooting.html